CVE-2021-41556

https://notcve.org/view.php?id=CVE-2021-41556

sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that can lead to Code Execution. If a victim executes an attacker-controlled squirrel script, it is possible for the attacker to break out of the squirrel script sandbox even if all dangerous functionality such as File System functions has been disabled. An attacker might abuse this bug to target (for example) Cloud services that allow customization via SquirrelScripts, or distribute malware through video games that embed a Squirrel Engine. El archivo sqclass.cpp en Squirrel versiones hasta 2.2.5 y 3.x hasta 3.1 permite una lectura fuera de límites (en el intérprete del núcleo) que puede conllevar a una ejecución de código. Si una víctima ejecuta un script de Squirrel controlado por un atacante, es posible que el atacante salga del sandbox del script de Squirrel incluso si toda la funcionalidad peligrosa, como las funciones del sistema de archivos, ha sido deshabilitada. • http://www.squirrel-lang.org/#download https://blog.sonarsource.com/squirrel-vm-sandbox-escape https://github.com/albertodemichelis/squirrel/commit/23a0620658714b996d20da3d4dd1a0dcf9b0bd98 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BV7SJJ44AGAX4ILIVPREIXPJ2GOG3FKV https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M3FQILX7UUEERSDPMZP3MKGTMY2E7ESU • CWE-125: Out-of-bounds Read •